The stage system where the asynchronous drive is possible

A stage having an asynchronous drive function is provided to assemble or disassemble a bridge connecting support stands by mounting a fan rotating unit at the support stand and to prevent the bridge from being damaged. A stage having an asynchronous drive function comprises a support stand(2), a bridge(1), and a pair of guide units(10,20). The support stand is installed at the both side units of a work stage and moves back and forth. The bridge interconnects the support stands and elevates along the support stands. A pair of guide units is interposed between the support stand and the bridge. The bridge portion moves horizontally while making the bridge move up and down. A pair of guide units comprises a supporting unit, a tilting unit, and a fan rotating unit. The supporting unit is combined with the respective support stand. The tilting unit is combined with the supporting unit. The fan rotating unit is combined with the tilting unit and the bridge to make the bridge rotate. The fan rotating unit comprises a fan bearing, a supporter, and a bridge fixing unit. The fan bearing helps the fan rotating unit to smoothly rotate. The supporter supports the fan bearing. The bridge fixing unit is connected to the top of the supporter and to the one side of the bridge.